Mines about dead from overheating. No sign of water in the oil. Combustion residue in the water is minor. Eats water FAST nowdays but not bad at first. Found a rusty spark plug for the first clue. A month later I have 2 rusty plugs and pulling the plugs on a hot engine with pressure still on the radiator I can hear the hissing from the two center cyl's.
Hope its just a gasket but with high miles and lots of grime on the back of the car I think its time for that B20 I been wanting.